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[AutoUpgrade] Fix remangling when upgrading struct return type 

This was remangling the old function rather than the new one, and
could result in failures when we were performing both a struct
return upgrade and an opaque pointer upgrade.
This commit is contained in:
Nikita Popov 2022-10-21 11:05:53 +02:00
parent 6ade6d2511
commit c8938809d1
2 changed files with 20 additions and 1 deletions
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2
llvm/lib/IR/AutoUpgrade.cpp
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@ -1125,7 +1125,7 @@ static bool UpgradeIntrinsicFunction1(Function *F, Function *&NewFn) {
Name, F->getParent());
// The new function may also need remangling.
if (auto Result = llvm::Intrinsic::remangleIntrinsicFunction(F))
if (auto Result = llvm::Intrinsic::remangleIntrinsicFunction(NewFn))
NewFn = *Result;
return true;
}

19
llvm/test/Assembler/opaque-ptr-intrinsic-remangling.ll
View File

@ -3,6 +3,8 @@
; Make sure that opaque pointer intrinsic remangling upgrade works.
%int8x16x2_t = type { <16 x i8>, <16 x i8> }
declare i32* @fake_personality_function()
declare void @func()
@ -43,5 +45,22 @@ define i8* @test_ptr_annotation(i8* %p) {
ret i8* %p2
}
define void @test_struct_return(%int8x16x2_t* %res.p, i8* %a) {
; CHECK-LABEL: @test_struct_return(
; CHECK-NEXT: [[TMP1:%.*]] = call { <16 x i8>, <16 x i8> } @llvm.aarch64.neon.ld1x2.v16i8.p0(ptr [[A:%.*]])
; CHECK-NEXT: [[TMP2:%.*]] = extractvalue { <16 x i8>, <16 x i8> } [[TMP1]], 0
; CHECK-NEXT: [[TMP3:%.*]] = insertvalue [[INT8X16X2_T:%.*]] poison, <16 x i8> [[TMP2]], 0
; CHECK-NEXT: [[TMP4:%.*]] = extractvalue { <16 x i8>, <16 x i8> } [[TMP1]], 1
; CHECK-NEXT: [[TMP5:%.*]] = insertvalue [[INT8X16X2_T]] [[TMP3]], <16 x i8> [[TMP4]], 1
; CHECK-NEXT: store [[INT8X16X2_T]] [[TMP5]], ptr [[RES_P:%.*]], align 16
; CHECK-NEXT: ret void
;
%res = call %int8x16x2_t @llvm.aarch64.neon.ld1x2.v16i8.p0i8(i8* %a)
store %int8x16x2_t %res, %int8x16x2_t* %res.p
ret void
}
declare token @llvm.experimental.gc.statepoint.p0f_isVoidf(i64, i32, void ()*, i32, i32, ...)
declare i8* @llvm.ptr.annotation.p0i8(i8*, i8*, i8*, i32, i8*)
declare %int8x16x2_t @llvm.aarch64.neon.ld1x2.v16i8.p0i8(i8*)